原文链接：http://group.ednchina.com/56/31122.aspx
Altera Forum精彩问答汇总
I can't afford losing any of these invaluable information anymore! It is not too late if I start reading and collecting them from now on. I will look the threads through everyday as I do with my Hotmail E-mails and EETimes RSSs.
It's all about Timing：
Sun Nov 01 2009 17:17:32 GMT+0800 signal transfer in different clock domains
Sun Nov 01 2009 16:53:26 GMT+0800 X_on_violation_option